Walker



FIG. 1 is a right side elevation view of a walker showing my new design, the left side elevation view being a mirror image of that shown;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevation view thereof; and

FIG. 5 is a fragmentary side elevation view taken along lines 5--5 of FIG. 2. 

The ornamental design for a walker, substantially as shown and described. 